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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">    Copyright (C) 2019 Zongming Liu &lt;1849059316@qq.com&gt;</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">    This program is free software; you can redistribute it and/or modify</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">    it under the terms of the GNU General Public License as published by</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">    the Free Software Foundation; either version 2 of the License, or</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">    (at your option) any later version.</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">    </span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">    This program is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">    but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">    GNU General Public License for more details.</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">    </span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">    You should have received a copy of the GNU General Public License along</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">    with this program; if not, write to the Free Software Foundation, Inc.,</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;</div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#ifndef FastBuffer_h__</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#define FastBuffer_h__</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="keyword">namespace </span>SkyEngine2d</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;{</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;    </div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;    <span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div><div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html">   29</a></span>&#160;    <span class="keyword">class </span><a class="code" href="class_sky_engine2d_1_1_fast_buffer.html">FastBuffer</a></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;    {</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;    <span class="keyword">public</span>:</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    </div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#acc51cfa2326470ef8a0bcf1b83a33a61">   37</a></span>&#160;        <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#acc51cfa2326470ef8a0bcf1b83a33a61">FastBuffer</a>(<span class="keywordtype">int</span> defalut_capacity = 128)</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;            :m_buffer(0)</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;            , m_capacity(0)</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;            , m_size(0)</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;            , m_offset(0)</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;        {</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;            this-&gt;<a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#abb504bf7f642daa4022da71c14052fbb">reserve</a>(defalut_capacity);</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;        }</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    </div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#afa30728074b1ef2518a55d934aea9fc8">   50</a></span>&#160;        <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#afa30728074b1ef2518a55d934aea9fc8">FastBuffer</a>(<span class="keyword">const</span> <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html">FastBuffer&lt;T&gt;</a>&amp; buffer)</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;        {</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;            m_buffer = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;            m_capacity = buffer.m_capacity;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;            m_size = buffer.m_size;</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;            m_offset = buffer.m_offset;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    </div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;            <span class="keywordflow">if</span> (m_size + m_capacity &gt; 0)</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;            {</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;                m_buffer = (T*)malloc((m_size + m_capacity) * <span class="keyword">sizeof</span>(T));</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;                assert(m_buffer &amp;&amp; buffer.m_buffer);</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;                <span class="keywordflow">if</span> (m_size &gt; 0)</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;                    memcpy((<span class="keywordtype">char</span>*)m_buffer, (<span class="keywordtype">char</span>*)buffer.m_buffer, m_size * <span class="keyword">sizeof</span>(T));</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;            }</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        }</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    </div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;</div><div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#a9e7683b9aa6be313cdc14bcfb4b8b78d">   70</a></span>&#160;        <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#a9e7683b9aa6be313cdc14bcfb4b8b78d">FastBuffer</a>(<a class="code" href="class_sky_engine2d_1_1_fast_buffer.html">FastBuffer&lt;T&gt;</a> &amp;&amp; buffer)</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        {</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;            m_buffer = buffer.m_buffer;</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;            m_capacity = buffer.m_capacity;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;            m_size = buffer.m_size;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;            m_offset = buffer.m_offset;</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    </div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;            buffer.m_offset = 0;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;            buffer.m_size = 0;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;            buffer.m_buffer = 0;</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;            buffer.m_capacity = 0;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;        }</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    </div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div><div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#ae27008e1a3e1b9c1caa67ece122e5e1f">   88</a></span>&#160;        <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html">FastBuffer&lt;T&gt;</a>&amp; <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#ae27008e1a3e1b9c1caa67ece122e5e1f">operator=</a>(<span class="keyword">const</span> <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html">FastBuffer&lt;T&gt;</a> &amp; buffer)</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        {</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;            <span class="keywordflow">if</span> (<span class="keyword">this</span> == &amp;buffer)</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;            {</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;                <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;            }</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    </div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;            free(m_buffer);</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;            m_buffer = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    </div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;            <span class="keywordtype">int</span> allocate_size = buffer.m_size + buffer.m_capacity;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;            <span class="keywordflow">if</span> (allocate_size &gt; 0)</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;            {</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;                m_buffer = (T*)malloc(allocate_size * <span class="keyword">sizeof</span>(T));</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;                <span class="keywordflow">if</span> (buffer.m_size &gt; 0)</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;                {</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;                    memcpy(m_buffer, buffer.m_buffer, buffer.m_size);</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;                }</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;            }</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    </div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;            m_offset = buffer.m_offset;</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;            m_capacity = buffer.m_capacity;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;            m_size = buffer.m_size;</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    </div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;            <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        }</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    </div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;</div><div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#a204c893a96f99ea1fb35c1719e68f542">  120</a></span>&#160;        <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html">FastBuffer&lt;T&gt;</a>&amp; <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#a204c893a96f99ea1fb35c1719e68f542">operator=</a>(<a class="code" href="class_sky_engine2d_1_1_fast_buffer.html">FastBuffer&lt;T&gt;</a> &amp;&amp; buffer)</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;        {</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;            <span class="keywordflow">if</span> (<span class="keyword">this</span> == &amp;buffer)</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;            {</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;                <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;            }</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    </div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;            free(m_buffer);</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    </div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;            m_buffer = buffer.m_buffer;</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;            m_capacity = buffer.m_capacity;</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;            m_size = buffer.m_size;</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;            m_offset = buffer.m_offset;</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    </div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;            buffer.m_offset = 0;</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;            buffer.m_size = 0;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;            buffer.m_buffer = 0;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;            buffer.m_capacity = 0;</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    </div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;            <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;        }</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    </div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    </div><div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#a4a8a88dbfd19d119cc3c4c23357edc8b">  144</a></span>&#160;        <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#a4a8a88dbfd19d119cc3c4c23357edc8b">~FastBuffer</a>()</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;        {</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;            free(m_buffer);</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        }</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    </div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;</div><div class="line"><a name="l00155"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#a3a6b01d255f54ba905aff4e0c1ade810">  155</a></span>&#160;        <span class="keywordtype">void</span> <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#a3a6b01d255f54ba905aff4e0c1ade810">append</a>(<span class="keyword">const</span> T * data, <span class="keywordtype">int</span> size)</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;        {</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;            <span class="keywordflow">if</span> (size &gt; m_capacity)</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;            {</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;                this-&gt;allocate(size);</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;            }</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    </div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;            assert(m_capacity &gt;= size);</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    </div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;            <span class="keywordtype">int</span> data_size = size * <span class="keyword">sizeof</span>(T);</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;            std::memcpy((<span class="keywordtype">char</span>*)m_buffer + m_offset, (<span class="keywordtype">char</span>*)data, data_size);</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;            m_offset += data_size;</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    </div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;            m_capacity -= size;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;            m_size += size;</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    </div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;            <span class="keywordflow">return</span>;</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;        }</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;    </div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;</div><div class="line"><a name="l00179"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#a3409aa0f3f6a6265c76b3ba926fdcddc">  179</a></span>&#160;        <span class="keywordtype">void</span> <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#a3409aa0f3f6a6265c76b3ba926fdcddc">append</a>(T &amp;&amp; value)</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;        {</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;            <span class="keywordflow">if</span> (m_capacity &lt; 1)</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;            {</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;                this-&gt;allocate(1);</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;            }</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;    </div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;            m_buffer[m_size] = std::forward&lt;T&gt;(value);</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;            ++m_size;</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;            --m_capacity;</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;            m_offset += <span class="keyword">sizeof</span>(T);</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;        }</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;    </div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;</div><div class="line"><a name="l00197"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#a46bb8474716bb9ce9cbf91ee5c616022">  197</a></span>&#160;        <span class="keywordtype">void</span> <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#a46bb8474716bb9ce9cbf91ee5c616022">append</a>(<span class="keyword">const</span> T &amp; value)</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;        {</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;            <span class="keywordflow">if</span> (m_capacity &lt; 1)</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;            {</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;                this-&gt;allocate(1);</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;            }</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;    </div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;            m_buffer[m_size] = value;</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;            ++m_size;</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;            --m_capacity;</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;            m_offset += <span class="keyword">sizeof</span>(T);</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;        }</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;    </div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;</div><div class="line"><a name="l00214"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#a30a4357209d6b6a6b2c1f14d69ce2c99">  214</a></span>&#160;        <span class="keyword">const</span> T* <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#a30a4357209d6b6a6b2c1f14d69ce2c99">getData</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;<span class="keyword">        </span>{</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;            <span class="keywordflow">return</span> (T*)m_buffer;</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;        }</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;    </div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;</div><div class="line"><a name="l00223"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#ae5ce91afaf795c23f9d6e8b69b574263">  223</a></span>&#160;        <span class="keywordtype">int</span> <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#ae5ce91afaf795c23f9d6e8b69b574263">getSize</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;<span class="keyword">        </span>{</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;            <span class="keywordflow">return</span> m_size;</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;        }</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;    </div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;</div><div class="line"><a name="l00232"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#ab79255cdf919b8c824bc148f1ce97173">  232</a></span>&#160;        <span class="keywordtype">int</span> <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#ab79255cdf919b8c824bc148f1ce97173">getCapacitry</a>()<span class="keyword">const</span></div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;<span class="keyword">        </span>{</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;            <span class="keywordflow">return</span> m_capacity;</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;        }</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;    </div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;</div><div class="line"><a name="l00242"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#abb504bf7f642daa4022da71c14052fbb">  242</a></span>&#160;        <span class="keywordtype">void</span> <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#abb504bf7f642daa4022da71c14052fbb">reserve</a>(<span class="keywordtype">int</span> size)</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;        {</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;            <span class="keywordflow">if</span> (size &gt; m_capacity)</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;            {</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;                <span class="keyword">auto</span> tmp = m_buffer;</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;                m_buffer = this-&gt;reAllocate(size - m_capacity);</div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;                free(tmp);</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;            }</div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;            <span class="keywordflow">return</span>;</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;        }</div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;    </div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;</div><div class="line"><a name="l00257"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#a6dd4ca47ee2d4ac59dc4ef0e7ff6bd00">  257</a></span>&#160;        <span class="keywordtype">int</span> <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#a6dd4ca47ee2d4ac59dc4ef0e7ff6bd00">getMemSize</a>()</div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;        {</div><div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;            <span class="keywordflow">return</span> <span class="keyword">sizeof</span>(T)* m_size;</div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;        }</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;    </div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;</div><div class="line"><a name="l00267"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#ae93d4ba7c2f0a857e2bbc45e41a8fd75">  267</a></span>&#160;        <span class="keyword">const</span> T&amp; <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#ae93d4ba7c2f0a857e2bbc45e41a8fd75">operator[]</a>(<span class="keywordtype">int</span> index)<span class="keyword">const</span></div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;<span class="keyword">        </span>{</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;            assert(index &lt; m_size);</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;            <span class="keywordflow">return</span> (m_buffer)[index];</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;        }</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;    </div><div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;</div><div class="line"><a name="l00278"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#ab0c74d5cabc35fba9b1d3091de9d3732">  278</a></span>&#160;        T&amp; <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#ab0c74d5cabc35fba9b1d3091de9d3732">operator[]</a>(<span class="keywordtype">int</span> index)</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;        {</div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;            assert(index &lt; m_size);</div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;            <span class="keywordflow">return</span> m_buffer[index];</div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;        }</div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;    </div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;</div><div class="line"><a name="l00289"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#acd0439c5932a5d2dcb51b30de1507727">  289</a></span>&#160;        <span class="keywordtype">void</span> <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#acd0439c5932a5d2dcb51b30de1507727">clear</a>()</div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;        {</div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;            m_capacity += m_size;</div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;            m_size = 0;</div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;            m_offset = 0;</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;        }</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;    </div><div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;</div><div class="line"><a name="l00300"></a><span class="lineno"><a class="line" href="class_sky_engine2d_1_1_fast_buffer.html#ab844a48bba1b468e72e0f7c57ca85cf3">  300</a></span>&#160;        <span class="keywordtype">void</span> <a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#ab844a48bba1b468e72e0f7c57ca85cf3">freeMem</a>()</div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;        {</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;            this-&gt;<a class="code" href="class_sky_engine2d_1_1_fast_buffer.html#acd0439c5932a5d2dcb51b30de1507727">clear</a>();</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;            free(m_buffer);</div><div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;            m_buffer = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;        }</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;    </div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;    <span class="keyword">private</span>:</div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;    </div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;</div><div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;        <span class="keywordtype">void</span> allocate(<span class="keywordtype">int</span> need_size)</div><div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;        {</div><div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;            <span class="keywordflow">if</span> (need_size &gt; m_capacity)</div><div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;            {</div><div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;                this-&gt;reAllocate(need_size + m_size + m_capacity);</div><div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;            }</div><div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;            <span class="keywordflow">return</span>;</div><div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;        }</div><div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;    </div><div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;</div><div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;        T* reAllocate(<span class="keywordtype">int</span> size)</div><div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;        {</div><div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;            <span class="keywordtype">int</span> alloc_size = m_size + m_capacity + size;</div><div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;            T* tmp = (T*)malloc(alloc_size * <span class="keyword">sizeof</span>(T));</div><div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;            m_capacity = alloc_size;</div><div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;    </div><div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;            <span class="keywordflow">if</span> (!m_size)</div><div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160; 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   };</div><div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;}</div><div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;</div><div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;</div><div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;</div><div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;<span class="preprocessor">#endif // FastBuffer_h__</span></div><div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_a46bb8474716bb9ce9cbf91ee5c616022"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#a46bb8474716bb9ce9cbf91ee5c616022">SkyEngine2d::FastBuffer::append</a></div><div class="ttdeci">void append(const T &amp;value)</div><div class="ttdoc">追加一个数据</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:197</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_a3409aa0f3f6a6265c76b3ba926fdcddc"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#a3409aa0f3f6a6265c76b3ba926fdcddc">SkyEngine2d::FastBuffer::append</a></div><div class="ttdeci">void append(T &amp;&amp;value)</div><div class="ttdoc">追加一个数据</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:179</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_ae93d4ba7c2f0a857e2bbc45e41a8fd75"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#ae93d4ba7c2f0a857e2bbc45e41a8fd75">SkyEngine2d::FastBuffer::operator[]</a></div><div class="ttdeci">const T &amp; operator[](int index) const</div><div class="ttdoc">取值</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:267</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_acd0439c5932a5d2dcb51b30de1507727"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#acd0439c5932a5d2dcb51b30de1507727">SkyEngine2d::FastBuffer::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">清空缓存</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:289</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_ab79255cdf919b8c824bc148f1ce97173"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#ab79255cdf919b8c824bc148f1ce97173">SkyEngine2d::FastBuffer::getCapacitry</a></div><div class="ttdeci">int getCapacitry() const</div><div class="ttdoc">获取容量</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:232</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_ae27008e1a3e1b9c1caa67ece122e5e1f"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#ae27008e1a3e1b9c1caa67ece122e5e1f">SkyEngine2d::FastBuffer::operator=</a></div><div class="ttdeci">FastBuffer&lt; T &gt; &amp; operator=(const FastBuffer&lt; T &gt; &amp;buffer)</div><div class="ttdoc">拷贝赋值</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:88</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_a30a4357209d6b6a6b2c1f14d69ce2c99"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#a30a4357209d6b6a6b2c1f14d69ce2c99">SkyEngine2d::FastBuffer::getData</a></div><div class="ttdeci">const T * getData() const</div><div class="ttdoc">获取数据的指针</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:214</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html">SkyEngine2d::FastBuffer</a></div><div class="ttdoc">快速缓存区</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:29</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_a6dd4ca47ee2d4ac59dc4ef0e7ff6bd00"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#a6dd4ca47ee2d4ac59dc4ef0e7ff6bd00">SkyEngine2d::FastBuffer::getMemSize</a></div><div class="ttdeci">int getMemSize()</div><div class="ttdoc">获取数据所占内存的大小 单位 字节</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:257</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_abb504bf7f642daa4022da71c14052fbb"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#abb504bf7f642daa4022da71c14052fbb">SkyEngine2d::FastBuffer::reserve</a></div><div class="ttdeci">void reserve(int size)</div><div class="ttdoc">预分配容量</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:242</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_ae5ce91afaf795c23f9d6e8b69b574263"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#ae5ce91afaf795c23f9d6e8b69b574263">SkyEngine2d::FastBuffer::getSize</a></div><div class="ttdeci">int getSize() const</div><div class="ttdoc">获取数据的数量</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:223</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_a3a6b01d255f54ba905aff4e0c1ade810"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#a3a6b01d255f54ba905aff4e0c1ade810">SkyEngine2d::FastBuffer::append</a></div><div class="ttdeci">void append(const T *data, int size)</div><div class="ttdoc">追加数据</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:155</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_a204c893a96f99ea1fb35c1719e68f542"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#a204c893a96f99ea1fb35c1719e68f542">SkyEngine2d::FastBuffer::operator=</a></div><div class="ttdeci">FastBuffer&lt; T &gt; &amp; operator=(FastBuffer&lt; T &gt; &amp;&amp;buffer)</div><div class="ttdoc">移动赋值</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:120</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_a4a8a88dbfd19d119cc3c4c23357edc8b"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#a4a8a88dbfd19d119cc3c4c23357edc8b">SkyEngine2d::FastBuffer::~FastBuffer</a></div><div class="ttdeci">~FastBuffer()</div><div class="ttdoc">析构</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:144</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_acc51cfa2326470ef8a0bcf1b83a33a61"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#acc51cfa2326470ef8a0bcf1b83a33a61">SkyEngine2d::FastBuffer::FastBuffer</a></div><div class="ttdeci">FastBuffer(int defalut_capacity=128)</div><div class="ttdoc">构造一个缓存区</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:37</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_ab0c74d5cabc35fba9b1d3091de9d3732"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#ab0c74d5cabc35fba9b1d3091de9d3732">SkyEngine2d::FastBuffer::operator[]</a></div><div class="ttdeci">T &amp; operator[](int index)</div><div class="ttdoc">取值</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:278</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_a9e7683b9aa6be313cdc14bcfb4b8b78d"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#a9e7683b9aa6be313cdc14bcfb4b8b78d">SkyEngine2d::FastBuffer::FastBuffer</a></div><div class="ttdeci">FastBuffer(FastBuffer&lt; T &gt; &amp;&amp;buffer)</div><div class="ttdoc">移动构造</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:70</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_afa30728074b1ef2518a55d934aea9fc8"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#afa30728074b1ef2518a55d934aea9fc8">SkyEngine2d::FastBuffer::FastBuffer</a></div><div class="ttdeci">FastBuffer(const FastBuffer&lt; T &gt; &amp;buffer)</div><div class="ttdoc">拷贝构造</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:50</div></div>
<div class="ttc" id="class_sky_engine2d_1_1_fast_buffer_html_ab844a48bba1b468e72e0f7c57ca85cf3"><div class="ttname"><a href="class_sky_engine2d_1_1_fast_buffer.html#ab844a48bba1b468e72e0f7c57ca85cf3">SkyEngine2d::FastBuffer::freeMem</a></div><div class="ttdeci">void freeMem()</div><div class="ttdoc">释放内存</div><div class="ttdef"><b>Definition:</b> FastBuffer.h:300</div></div>
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